Crestron CNX-BF12 Especificações descarregar pdf (Página 56)

EssentialsofCrestronProgramming



56





Thesubmenualsoincludestheoptiontodisplaythedevicefunctions,whichcanhelp

youverifythatthedeviceprovidestheexpectedcommands.ClickShow

IRFunctionstoviewthecommands.



Relays



Manydevicesemployinternalelectronicsthatallowfunctionstobetriggeredthrough a

simpleelectricalcontact.Intheworldofcontrolsystems,thisisaccomplishedusing

relays.Devicessuchasscreens,drapesandprojectorliftstendtousethistypeof

interface.Inaddition,somenot‐dimmedlightingcircuitsca

nbeswitchedonandoff

usingrelays.



Crestronmanufacturesrelaysofmanydifferentflavors:low‐powerrelaysforusewith

devicesthatdonotdrawalotofcurrentorrequirehighvoltages,andhigh‐powerrelays

fordirectcontrolofmotorsandlightingcircuits.Inaddition,relayscaneit

herbe

mechanicalorsolid‐state.



Toconfigurearelaydevice,thecontrolsystemmusthavearelaycardinstalled.Most

Crestroncontrolsystemsprovideabuilt‐inrelaycard;forexample,theC2I‐RY8cardis

builtintothePRO2.Itprovideseightlow‐voltagerelayports.Inaddition,Crestron

manufacturesplug‐inre

laycards,suchasCNXRY‐8,thatcanbeinstalledinthe

expansionslotsofthecontrolsystem.

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 99 100

Sem comentários

Crestron CNX-BF12 Especificações Página 56